Les adresses IP débutant par 145.9.158 sont fournies par SURFnet, elles appartiennent au CIDR (Classless Inter-Domain Routing) 145.9.0.0/16, le bloc IP comprant les adresses de 145.9.0.0 à 145.9.255.255). Le numéro de système autonome (ASN) est 1103.
| ASN | 1103 |
| IP commençant par | 145.9.0.0 |
| IP se terminant par | 145.9.255.255 |
| Nom ASN | SURFnet |
| CDIR | 145.9.0.0/16 |
| IP numérique | |
| Registe | ripencc |
| Dernière mise à jour | 04/11/2020 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | NL | Pays-Bas | - | Utrecht | 52,0908 | 5,1222 | 2020-11-04 |
| MaxMind | NL | Pays-Bas | - | Utrecht | 52,0938 | 5,1191 | 2020-11-04 |
| Whois | NL | - | - | - | 5 | 52 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 145.9.158.0 | 2433326592 | 0 |
| 145.9.158.1 | 2433326593 | 0 |
| 145.9.158.2 | 2433326594 | 0 |
| 145.9.158.3 | 2433326595 | 0 |
| 145.9.158.4 | 2433326596 | 0 |
| 145.9.158.5 | 2433326597 | 0 |
| 145.9.158.6 | 2433326598 | 0 |
| 145.9.158.7 | 2433326599 | 0 |
| 145.9.158.8 | 2433326600 | 0 |
| 145.9.158.9 | 2433326601 | 0 |
| 145.9.158.10 | 2433326602 | 0 |
| 145.9.158.11 | 2433326603 | 0 |
| 145.9.158.12 | 2433326604 | 0 |
| 145.9.158.13 | 2433326605 | 0 |
| 145.9.158.14 | 2433326606 | 0 |
| 145.9.158.15 | 2433326607 | 0 |
| 145.9.158.16 | 2433326608 | 0 |
| 145.9.158.17 | 2433326609 | 0 |
| 145.9.158.18 | 2433326610 | 0 |
| 145.9.158.19 | 2433326611 | 0 |
| 145.9.158.20 | 2433326612 | 0 |
| 145.9.158.21 | 2433326613 | 0 |
| 145.9.158.22 | 2433326614 | 0 |
| 145.9.158.23 | 2433326615 | 0 |
| 145.9.158.24 | 2433326616 | 0 |
| 145.9.158.25 | 2433326617 | 0 |
| 145.9.158.26 | 2433326618 | 0 |
| 145.9.158.27 | 2433326619 | 0 |
| 145.9.158.28 | 2433326620 | 0 |
| 145.9.158.29 | 2433326621 | 0 |
| 145.9.158.30 | 2433326622 | 0 |
| 145.9.158.31 | 2433326623 | 0 |
| 145.9.158.32 | 2433326624 | 0 |
| 145.9.158.33 | 2433326625 | 0 |
| 145.9.158.34 | 2433326626 | 0 |
| 145.9.158.35 | 2433326627 | 0 |
| 145.9.158.36 | 2433326628 | 0 |
| 145.9.158.37 | 2433326629 | 0 |
| 145.9.158.38 | 2433326630 | 0 |
| 145.9.158.39 | 2433326631 | 0 |
| 145.9.158.40 | 2433326632 | 0 |
| 145.9.158.41 | 2433326633 | 0 |
| 145.9.158.42 | 2433326634 | 0 |
| 145.9.158.43 | 2433326635 | 0 |
| 145.9.158.44 | 2433326636 | 0 |
| 145.9.158.45 | 2433326637 | 0 |
| 145.9.158.46 | 2433326638 | 0 |
| 145.9.158.47 | 2433326639 | 0 |
| 145.9.158.48 | 2433326640 | 0 |
| 145.9.158.49 | 2433326641 | 0 |
| 145.9.158.50 | 2433326642 | 0 |
| 145.9.158.51 | 2433326643 | 0 |
| 145.9.158.52 | 2433326644 | 0 |
| 145.9.158.53 | 2433326645 | 0 |
| 145.9.158.54 | 2433326646 | 0 |
| 145.9.158.55 | 2433326647 | 0 |
| 145.9.158.56 | 2433326648 | 0 |
| 145.9.158.57 | 2433326649 | 0 |
| 145.9.158.58 | 2433326650 | 0 |
| 145.9.158.59 | 2433326651 | 0 |
| 145.9.158.60 | 2433326652 | 0 |
| 145.9.158.61 | 2433326653 | 0 |
| 145.9.158.62 | 2433326654 | 0 |
| 145.9.158.63 | 2433326655 | 0 |
| 145.9.158.64 | 2433326656 | 0 |
| 145.9.158.65 | 2433326657 | 0 |
| 145.9.158.66 | 2433326658 | 0 |
| 145.9.158.67 | 2433326659 | 0 |
| 145.9.158.68 | 2433326660 | 0 |
| 145.9.158.69 | 2433326661 | 0 |
| 145.9.158.70 | 2433326662 | 0 |
| 145.9.158.71 | 2433326663 | 0 |
| 145.9.158.72 | 2433326664 | 0 |
| 145.9.158.73 | 2433326665 | 0 |
| 145.9.158.74 | 2433326666 | 0 |
| 145.9.158.75 | 2433326667 | 0 |
| 145.9.158.76 | 2433326668 | 0 |
| 145.9.158.77 | 2433326669 | 0 |
| 145.9.158.78 | 2433326670 | 0 |
| 145.9.158.79 | 2433326671 | 0 |
| 145.9.158.80 | 2433326672 | 0 |
| 145.9.158.81 | 2433326673 | 0 |
| 145.9.158.82 | 2433326674 | 0 |
| 145.9.158.83 | 2433326675 | 0 |
| 145.9.158.84 | 2433326676 | 0 |
| 145.9.158.85 | 2433326677 | 0 |